At 24 weeks, you're firmly in the second trimester, often called the "golden trimester," and your baby is making incredible strides in development. This week marks a significant phase, particularly for your baby's lung development, and it’s also a common time for your gestational diabetes screening.
What's happening with baby
Your baby is now roughly the size of an ear of corn, measuring around 300mm and weighing over a pound. This rapid growth is exciting! A critical milestone this week is the continued development of their lungs. The tiny air sacs, called alveoli, are beginning to form, and they're starting to produce surfactant, a substance that will help their lungs inflate properly after birth.
Beyond lung development, your baby's brain is rapidly maturing, leading to more coordinated movements. You might be feeling more distinct kicks and wiggles now. Their hearing is also becoming more refined, and they may react to loud noises from the outside world. Taste buds are developing, allowing them to distinguish flavors in the amniotic fluid, influenced by what you eat. Their skin is still thin and translucent but is gradually thickening.
What you might be feeling
With your baby growing quickly, your belly is likely becoming more prominent, which can bring a new set of physical sensations. You might notice increased pressure in your pelvis or some mild backaches as your body adjusts. For some, energy levels remain steady, while others might feel a return of some fatigue as your body works hard to support this growth.
Swelling in your hands and feet can sometimes begin around this time. Gentle movement and elevation can be supportive. You might also start to feel Braxton Hicks contractions – mild, irregular uterine tightenings that are a normal part of your body preparing for labor. Emotionally, many parents feel a deepening connection to their baby and a growing sense of anticipation as they move closer to the third trimester.
This week is also typically when your provider will recommend a gestational diabetes screening. It's a common and important step to ensure both your well-being and your baby's health.
